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《第三届南方林木育种研讨会论文(摘要)集》2006年
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Determining the suitability of African mahogany (Khaya senegalensis) for plantations in China

Roger Arnold  
【摘要】:正Khaya senegalensis(Desr.)A.Juss.(African mahogany or dry-zone mahogany) has long been an important multipurpose tree in its natural range in Africa.It is valued for a wide range of non-timber traditional use products and it provides a very high quality timber.Over the past 10 years demand for this timber has increased significantly.At the same time,prices for Khaya timber have risen substantially due to increasing demand, increasing scarcity of trees in natural stands and limits placed on raw log exports from Africa.In recent years,the potential of K.senegalensis as a plantation species has increasingly recognised and the annual establishment rates are increasingly rapidly in seasonally-dry lowland tropical areas of Australia,Sri Lanka and other countries. Khaya senegalensis is native to sub-Saharan Africa.It occurs in a discontinuous band between 8°and 15°N,extending from the Atlantic Ocean eastwards towards the Indian Ocean,including areas in Chad,Sudan,Uganda,Central African Republic,Benin,Cote D'lvoire,Gambia,Guinea,Guinea-Bissau,Mall,Niger,Nigeria,Senegal,Sierra Leone and Togo.Its habitats vary in altitude from 0-1800m asl,with rainfalls varying from about 400 mm to more than 1,700 mm per year and with dry seasons lasting from 4-8 months. It is thought that K.senegalesnsis was first introduced to China more than 100 years ago by French people.Today it is commonly grown in coastal regions of southern China as a shade and amenity tree. Information from studies carried out in Australia along with data from southern China and other countries in Asia,has recently been used to develop a climatic profile for K. senegalensis.This climatic profile has been used with climatic mapping programs to map areas climatically suited for plantations of K.senegalensis in China.

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